Xref: utzoo comp.sys.mac.misc:7713 comp.sys.mac.hardware:8013 Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!apple!usc!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu From: ifar355@ccwf.cc.utexas.edu (David H. Huang) Newsgroups: comp.sys.mac.misc,comp.sys.mac.hardware Subject: Re: reset button for si? Message-ID: <42971@ut-emx.uucp> Date: 22 Jan 91 23:57:47 GMT References: <17103@cgl.ucsf.EDU> Sender: news@ut-emx.uucp Reply-To: ifar355@ccwf.cc.utexas.edu (David H. Huang) Followup-To: comp.sys.mac.misc Organization: The University of Texas at Austin Lines: 40 In article bic@pom.mmwb.ucsf.edu (Bruce Cohen) writes: |kscott@cgl.ucsf.edu (Kevin Scott) writes: | |>bic@cgl.ucsf.edu (Bruce Cohen) writes: | |>>Where is the reset button on the box of the new Mac II si? | |>They have put it into the keyboard, calling the big power-on button with a |>triangle the "switch" and the command key clover, you use clover-switch for |>reset and clover-control-switch for reset. The catch is these don't work |>properly, can some kind soul tell me if they have fixed this with later |>versions? I had heard there are still bugs in the si rom, how many versions |>are there as of now? | |>email preferred, if snough people ask me for the responses I'll post it. | |As a former MS-DOS machine programmer, I question the judgment of not |having a hot button on the CPU box. Under MS-DOS, I had no problem hosing |the keyboard connection while hanging the machine. This was a real |problem on the early IBM PCs. On my Apple IIGS, the Control-Open Apple-Reset (exactly the same thing as Contol-Command-Power, the GS was the first to use the ADB) will make the ADB microcontroller pull the /RESET line low. Since this is entirely in hardware, there is no way a program can affect the ability to reboot. I'm sure this would more or less apply to the si also. Also, the reset always works, but the interrupt doesn't always work right. However, if you have MacsBug 6.2(?) or later, the interrupt works fine. Side note: sometimes a reset switch on the cpu box doesn't work all the time... Pitfall on the Commodore 128 would not allow you to reset... it would start itself back up. I thought it was a neat, although very annoying trick :-) -- David Huang | Internet: ifar355@ccwf.cc.utexas.edu | "My ganglion is stuck in UUCP: ...!ut-emx!ccwf.cc.utexas.edu!ifar355 | a piece of chewing gum!" America Online: DrWho29 |